Fixed a false extension mismatch for HTML files and enabled CSV attachments

app/MindWork AI Studio/Assistants/I18N/allTexts.lua

@@ -9670,6 +9670,9 @@ UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T1041509726"] = "Text"
 -- Office Files
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T1063218378"] = "Office Files"
 
+-- Tabular text
+UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T13157661"] = "Tabular text"
+
 -- Executable
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T1364437037"] = "Executable"
 

app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua

@@ -9672,6 +9672,9 @@ UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T1041509726"] = "Text"
 -- Office Files
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T1063218378"] = "Office-Dateien"
 
+-- Tabular text
+UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T13157661"] = "Tabellarischer Text"
+
 -- Executable
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T1364437037"] = "Ausführbare Dateien"
 

app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua

@@ -9672,6 +9672,9 @@ UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T1041509726"] = "Text"
 -- Office Files
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T1063218378"] = "Office Files"
 
+-- Tabular text
+UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T13157661"] = "Tabular text"
+
 -- Executable
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::RUST::FILETYPES::T1364437037"] = "Executable"
 

app/MindWork AI Studio/Tools/Rust/FileTypes.cs

@@ -51,6 +51,7 @@ public static class FileTypes
     // Document hierarchy
     public static readonly FileTypeFilter PDF         = FileTypeFilter.Leaf("PDF", "pdf");
     public static readonly FileTypeFilter TEXT        = FileTypeFilter.Leaf(TB("Text"), "txt", "md", "rtf");
+    public static readonly FileTypeFilter TABULAR     = FileTypeFilter.Leaf(TB("Tabular text"), "csv", "tsv");
     public static readonly FileTypeFilter MS_WORD     = FileTypeFilter.Leaf("Microsoft Word", "docx");
     public static readonly FileTypeFilter WORD        = FileTypeFilter.Composite("Word", ["odt"], MS_WORD);
     public static readonly FileTypeFilter EXCEL       = FileTypeFilter.Leaf("Excel", "xls", "xlsx");
@@ -64,7 +65,7 @@ public static class FileTypes
     public static readonly FileTypeFilter OFFICE_FILES = FileTypeFilter.Parent(TB("Office Files"),
         WORD, EXCEL, POWER_POINT, PDF);
     public static readonly FileTypeFilter DOCUMENT     = FileTypeFilter.Parent(TB("Document"),
-        TEXT, OFFICE_FILES, SOURCE_CODE, LATEX);
+        TEXT, TABULAR, OFFICE_FILES, SOURCE_CODE, LATEX);
 
     // Media hierarchy
     public static readonly FileTypeFilter IMAGE = FileTypeFilter.Leaf(TB("Image"),

app/MindWork AI Studio/wwwroot/changelog/v26.8.1.md

@@ -8,6 +8,7 @@
 - Added a priority for configuration plugins. Organizations that deploy several configurations can now decide which one wins: a configuration with a higher priority overrides the settings and providers of a lower one. This allows a company-wide base configuration that each department refines for itself.
 - Added a way for IT departments to try out a configuration before rolling it out. A configuration placed in the new `.config-tests` directory below the plugins directory acts like one your organization deployed, including the approval of assistant plugins, so a test shows exactly what colleagues will see later. No configuration server is needed for this. AI Studio empties that directory every time it starts, so a test configuration is valid for one session, and the information page reports it while it is active. The Enterprise IT documentation describes the whole procedure.
 - Improved how your organization's configuration behaves when a configuration plugin is present but cannot be loaded, e.g. because of an error in the plugin. Such a plugin still manages your app, so its settings, providers, data sources, profiles, and chat templates now stay in place instead of being removed.
+- Added CSV and TSV files to the file types you can attach. AI Studio was already able to read them, but they could not be selected.
 - Improved reading large files from slow locations such as network drives. AI Studio now waits considerably longer before it gives up, and it tells you when it does.
 - Changed how approvals for assistant plugins combine when your organization deploys several configurations. They now add up, so a department can approve additional assistant plugins without repeating the approvals of the company-wide configuration. Previously, the last configuration replaced all earlier approvals, which silently required a new security check for those assistants.
 - Fixed attached files reaching the AI as empty documents when AI Studio could not read them. The AI then answered as if your file had no content, and nothing pointed to a problem. AI Studio now names the cause instead, for example an unavailable network drive, a file another program is blocking, a protected PDF, or a scanned PDF without a text layer, and it no longer attaches such a file.

runtime/src/file_data.rs

@@ -383,10 +383,19 @@ fn route_from_extension(ext: &str) -> Option<ExtractionRoute> {
         "pdf" => Some(ExtractionRoute::Pdf),
         DOCX => Some(ExtractionRoute::PandocDocx),
         ODT => Some(ExtractionRoute::PandocOdt),
+        "html" | "htm" => Some(ExtractionRoute::PandocHtml),
         "csv" | "tsv" => Some(ExtractionRoute::Csv),
         "pptx" => Some(ExtractionRoute::PresentationPptx),
         "odp" => Some(ExtractionRoute::PresentationOdp),
         "xlsx" | "ods" | "xls" | "xlsm" | "xlsb" | "xla" | "xlam" => Some(ExtractionRoute::Spreadsheet),
+        "jpg" | "jpeg" | "png" | "gif" | "bmp" | "tiff" | "svg" | "webp" | "heic" => Some(ExtractionRoute::Image),
+
+        //
+        // Everything else claims nothing in particular. Text formats end up here on purpose:
+        // their content cannot be identified beyond "this is text", so there is nothing to
+        // contradict. Every extension which does have a reader must be listed above, otherwise
+        // a correctly named file looks like a mismatch.
+        //
         _ => None,
     }
 }